:root {
  --ink: #10121a;
  --muted: #5c6470;
  --accent: #4c74ff;
  --accent-dark: #2841b3;
  --peach: #ffddc8;
  --mint: #c7f2e5;
  --card: #ffffff;
  --shadow: 0 24px 60px rgba(12, 16, 28, 0.12);
}
body {
  font-family: "Outfit", "Noto Sans KR", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1100px 800px at 10% 10%, #f9f4ee 0%, transparent 60%),
    radial-gradient(900px 700px at 90% 0%, #eef4ff 0%, transparent 65%),
    linear-gradient(180deg, #f7f3eb 0%, #f4f7ff 40%, #fdf2f0 100%);
  min-height: 100vh;
}
h1,
h2,
h3 {
  font-family: "Sora", "Outfit", sans-serif;
}
.learn-shell {
  background: rgba(255, 255, 255, 0.9);
  border-radius: 2rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(16, 18, 26, 0.08);
  backdrop-filter: blur(12px);
}
.video-card {
  width: 100%;
  text-align: left;
  border-radius: 1.75rem;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(16, 18, 26, 0.08);
  box-shadow: 0 22px 40px -30px rgba(16, 18, 26, 0.35);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 35px 45px -25px rgba(76, 116, 255, 0.35);
}
.lang-chip {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.35rem 0.9rem;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.9);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.15);
}
.tag-pill {
  display: inline-flex;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  background: rgba(76, 116, 255, 0.12);
  color: var(--accent-dark);
  font-size: 0.75rem;
  font-weight: 600;
}
.empty-card {
  text-align: center;
  padding: 3rem 1rem;
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: inset 0 0 18px rgba(16, 18, 26, 0.08);
  color: var(--muted);
}
.text-indigo-500 {
  color: var(--accent) !important;
}
.text-indigo-600 {
  color: var(--accent-dark) !important;
}
.bg-indigo-50 {
  background: rgba(76, 116, 255, 0.08) !important;
}
.bg-indigo-100 {
  background: rgba(76, 116, 255, 0.16) !important;
}